I started having the same problem in my YJ; I noticed it after I installed the lift, so I always kind of thought it was the suspension, but it only clanks when in a turn and not when compressing (like if I hit a speed bump while going straight, it will not clank), and does not do it constantly (although I hear it more than a couple of times a day!). Let me know if you figure this one out (and I AM hoping it is not the steering box!).